With his publication of On the Origin of Species, Darwin forever changed our concept of the world. While Johnson praises Darwin’s extraordinary skills as a natural scientist and his monumental achievements, he does not sidestep Darwin’s tragic failures as an anthropologist. Johnson argues that by applying his theory of natural selection to humans, Darwin provided a platform for the burgeoning eugenics movement. Lay readers and academics alike will enjoy this concise and unflinching exploration of Charles Darwin, a genius whose discoveries—even the flawed ones—add significant dimension to our understanding of his mind, the era in which he lived, and his everlasting impact on our world.